    function time() {
        var vWeek, vWeek_s, vDay;
        vWeek = ["星期天", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六"];
        var date = new Date();
        year = date.getFullYear();
        month = date.getMonth() + 1;
        day = date.getDate();
        hours = date.getHours();
        minutes = date.getMinutes();
        seconds = date.getSeconds();
        vWeek_s = date.getDay();
        document.getElementById("time").innerHTML = year + "年" + month + "月" + day + "日" + "\t" + hours + ":" + minutes + ":" + seconds + "\t" + vWeek[vWeek_s];

    };
    setInterval("time()", 1000);

    window.addEventListener('scroll', function() {
            var t = $('body, html').scrollTop();
            if (t > 715) {
                    $('#navMenu').addClass('navDiv-active');


            } else {
                    $('#navMenu').removeClass('navDiv-active');
                    $(".aplayer").addClass('aplayer-hide');
            }
    });